Gar-truck



(No Model.) 2 Sheets-Sheet 1.

A. WESTLAKE.

Oar Truck.

No. 241,104. vPatented May 3, |881.

PETERS, Fhofo-ljthogmphen Washington. D, C.

2. t. e e h s ...w e e h s 2 E K l Aw Lu Tr ST H F a WC A (No Model.)

Patented May A3, 1881.

Y No. 241,104.

Nrreo STATE-s ATENT rtree.

ANDREW WESTLAKE, OF LEADVILLE, COLORADO.

CAR-TRUCK.

SPECIFICATION forming part of Letters Patent No. 241,104, dated May 3, 1881.

Application filed February 5, 1881. (No model.)

To all whom it may concern:

Be it known that l, ANDREW WEs'rLAKE, ot' Leadville. in the county of Lake and State of Colorado, have invented certain new and useful Improvements in Oar-Trucks; and l do hereby declare that the following is a full, clear, and exact description of the'invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specitication.

This invention relates to that class of car trucks in which the several wheels have independent axles and it also relates to car-trucks provided with swinging holsters for supporting the car.

The improvement consists in the peculiar construction of the truck-frame, and in the features of construction and combination hereinafter fully set forth, and particularly specied in the claims.

In the accompanying drawings, Figure l is a top view of my improved car-truck. Fig. 2 is a vertical longitudinal section on line 2 2, Fig. 1. Fig. 3 is a transverse section on line 3 3 of Fig. l. Fig. 4 is a transverse section on line 4 4 of Fig. 1. Fig. 5 is a perspective view of the frame, which will be more clearly understood by the following description.

The upper portion of my im proved car-truck, which practically constitutes the top plate, is lnade of iron, and is formed as follows: An outer rectangular frame, A, is made in one solid piece, whereby the usual joints heretoforeineident to such frames are dispensed with, thus affording strength and cheapness of construction. An inner iron frame, B, castin one solid piece, is lirmly riveted at its ends to the under side of the ends of the outer frame, A. The sides b of this inner frame are parallel with the sides a of the outer fra-me, A, the ends b of said inner frame being held closely against the under surfaces of the ends a' of the outer frame. 4The bolts or rivets b2, which secure these two iron frames together, also secure the upper ends of braces d to the four corners of the inner frame, B, as will be hereinafter more specifically referred to. The upper surfaces of the two frames A B are in the saine plane, to effect which it will be apparent that the ends of the frame B must be depressed adjacent to its four corners.

The braces, which are above referred to as being secured to the inner frame, consist of the upturned inclined ends fl of the bars D D.

.Bars E E, having similar upturiied inclined ends c, are arranged outside ot' and parallel with the inner bars, D, the said ends or braces c being secured by bolts or rivets passing through the ends of bars F and through the four corners of lthe outer frame, A. The bars F are secured a portion of their length to the bars E, then upturned a portion of their length to meet the outer frame, A, and then extended along the under side of said frame, whereby their ends reach the corners of frame A, where they are securedb)1 the bolts or rivets, as aforesaid.

Inner bars, GG, are secured to the side bars of the inner frame, B. These bars G are bent in the same way as the bars F, and are arranged parallel therewith, whereby said bars G furnish the inclined braces g.

l I represent cross-bars, which are bolted to the under side ot' the four bars D E F G, the ends ot' said bars I being bent upward so as to embrace the outer edges of the outer ones of the bars, which are adapted to form braces. as aforesaid. This arrangement of frames and bars constitutes a light and exceedingly strong open frame, which is in effect an iron cage.

K K indicate two vertical iron plates, which are arranged within the iron cage or frame just described and secured by bolts L passing through flanges 7c,which are formed along the upper and lower edges of the plates. These bolts are also arranged to pass through and bind more firmly together the upper frames and the lower bars, D E F G, of the frame, an illustration of the manner in which said bolts pass through the frames and the bars being illustrated in Figs. l and 2, in the former of which figures the upper ends of the bolts and the taps thereon are shown, and in the latter two bolts are indicated as binding together two of said bars with the flanged plates K.

At the sides of the main structure or cage are the iron plates M, (see Fi0.4,) which said plates are formed with flanges and secured by bolts or rivets between the two vertical plates K K.

N N indicate the ear-wheels, the axles of which are journaled in the boxes O O. The bearings for the axles are formed by plates at, arranged Within the boxes in conjunction with IOO the ordinary springsn. These boxes are titted between the upper frames and the lower bars of the main frame or cage, and are recessed to receive the sante. Bolts B P alongside ot' said boxes hold them rigidly in place, said bolts being passed through the upper frames and the lower bars, D, ofthe cage. Any suitable or well-known oilers for lubricating the axles of the car-wheels can be employed.

R indicates a strong bolster, consisting of an elliptic spring", upon which the body of the car bears. This bolster is arranged transversely to the length ot' the car, and is suspended between the plates K K by means of arms r r, which are hung upon rods S, so as to admit ot' a swinging movement of' the said bolster. These rods or bars S have their bearings in blocks T, which are secured to the top la n ges of the vertical plates K, said blocks being shown in the plan view, Fig. l. rI he bolster R will have any suit-able socket, r', at its top, to receive a bolt from the car-body. The lateral swing of this bolster is of especial advantage while the car is passing round a curve in the road. since the friction will, in a great measure, be transferred from the outer to the inner spindles, thereby preventinghot boxes, caused by the increased rate of speed ot' the outer axles or spindles. It is understood that in my truck I do not pass the axle from one wheel to another, but employ a separate axle for each wheel. Fig. l illustrates this arrangement, which, in conjunction with my swinging bolster, constitutes an important feature of the invention.

What I claim, and desire to secure by Letters Patent, is-

1. A cartruck comprising a rectangular metal outer frame, A, made in one piece, a rectangular inner metal frame, B, madevin one piece, and bolted at its four corners to the under side ofthe end bars, a', of said outer frame, and a series of lower longitudinal bars having their ends inclined upward to form braces, which are secured to the upper rectangular frames, said parts being constructed and cornbined substantially in the manner shown and specified.

2. The top ot' a car-truck,composed of the outer rectangular metal frame, A made in one piece, and theinner rectan gular metal frame, B, made in onepiece, and formed with its side bars depressed at their ends, the end bars, b', ofsaid inner frame being held along theirentire length against the under side of the end bars, a', ofthe outer frame, and the side bars, b, ofthe inner frame being in the same horizontal plane as the side bars ot' the outer frame, the whole connected and supported by rods, bolts, and braces, substantially as described.

3. The combination, in a car-truck, ot' the rectangular outer and inner metal frames, A and B, secured together as described, with the lower longitudinal bars, ll F G, arranged as specified, and having inclined ends secured to the upper rectangular frames in the manner set forth, the transverse bars l I, and the bolts P L, substantially as shown.

4. The combination, in a car-truck, of the upper, outer, and inner rectangular metal frames, A and B, with the langed vertical plates K, the swinging bolsterlt, and the arms r, supporting said bolster, and hung upon rods S, as described.

5. The combination, in a car-truck, ot' the upper, outer, and inner rectangular lnctal frames, A and B, secured together substantially as set t'orth, with the lower longitudinal bars, E F G, the vertical transverse plates K, provided with flanges bearing against the upper frames and lower longitudinal bars, the bolts passing through the frames, bars, and flanges, the plates M, between the ends ofthe transverse vertical plates, the swinging bolster B, arranged between the four plates, and swinging arms supporting the bolster, substantially as shown and described.

In testimony that I claim the foregoing as my own I have hereto atlxed my signature in presence ot' two witnesses.

ANDREW WESTLAKE.

Witnesses:

W. l. THOMPSON, HENRY HUNDEMER. 

